The earthy graphite belongs to high-quality microcrystalline graphite, most of which are graphite carbon, hard gray, metallic luster, soft, Mohr hardness 1-2, specific gravity 2-2.24, stable chemical property, not affected by strong acid and alkali, less harmful impurities, iron, sulfur, phosphorus, nitrogen, molybdenum, It is widely used in casting, coating, battery, carbon products, pencil and pigment, Specifications of refractories, smelting, carburizers, doomed protective slag, etc.: they are divided into “wt” – iron requirements (commonly known as “electric carbon”), “W” – non iron requirements (commonly known as “casting”). The main products are graphite balls, graphite powder, graphite particles, graphite sand. According to the fixed carbon content, they are divided into 8 grades: 65, 70, 75, 78, 80, 83, 85, 88.

Specification of graphite fine powder

100mesh, 200mesh, 325mesh, 800mesh, 1200mesh, 2000mesh, 4000mesh, 5000mesh, 8000mesh, 10000mesh, 12000mesh and other models, special for anticorrosive coating, special for rubber, special for lubricating oil, special for FRP, special for ink, special for dry battery, special for alkaline battery, special for lubricating coating, special for powder metallurgy, special for graphite emulsion, etc.

High temperature resistance
The melting point of graphite is 3850 ± 50 ℃, and the boiling point is 4250 ℃. Even if it is burned by ultra-high temperature arc, the weight loss is very small, and the coefficient of thermal expansion is very small. The strength of graphite increases with the increase of temperature. At 2000 ℃, the strength of graphite doubles.